华东地区元荡湖现生介形类新记录

NEW RECORD OF FRESHWATER OSTRACODS FROM THE YUANDANG LAKE IN THE EAST CHINA

本文首次记述了采自我国东部元荡湖的现生介形类7属9种,分别为:近球形金星介Cypris subglobosa Sowerby,1840、膨大丽神介Cypretta turgida(Sars,1896)、克氏丽星介Cypria kraepelini(G.W.Müller,1903)、无偶斗星介Cypridopsis vidua(O.F.Müller,1776)、塔尔薄丽星介Dolerocypria taalensis Tressler,1937、豆形豆形玻璃介Fabaeformiscandona fabaeformis(Fischer,1851)、弯叶豆形玻璃介F.myllaina Smith et Kamiya,2007、豆形玻璃介(未定种)Fabaeformiscandonasp.和粗糙土星介Ilyocypris salebrosa Stepanaitys,1960。这些属种在太湖流域的淀泖湖群系首次报道,其中F.myllaina和I.salebrosa均首次报道于我国东部湖区。本研究丰富了我国介形类记录,可为介形类地理区系研究提供基础资料。

The present paper reports nine living ostracode species from the bottom sediments of the Yuandang Lake located at the junction of Jiangsu and Shanghai, East China. These species are Cypris subglobosa Sowerby, C2epretta turgida （Sars）, Cypria leraepelini （G. W. Muller） , Cypridopsis vidua （O. F. Maller）, Dolerocypria taalensis Tressler, Fabaeformiscandona fabaeformis （Fischer）, F. myllaina Smith et Kamiya, Fabaeformiscandona sp. and Ilyocypris salebrosa Stepanaitys. These species are firstly recorded in the Dianmao lake group of the Taihu lake re- gion of East China. Among them, F. myllaina is a new record in China and I. salebrosa is firstly found in the eastern lake region of East China. The present study expands our knowledge on the taxonomy and geographical distribution of ostracod.